Ultracracking
超加氢裂化
🗣️ 情景例句
I have learned to use computers and have become familiar with all clerical duties.
我学会使用电脑及熟悉所有文员的工作。
Good words without deeds are rushes and reeds.
光说好话而不见行动，一文不值。
One day she came into my room laughing happily.
有一天，她开心地笑着来到我的房间。